@extends('layouts.public')

@section('head')
    <link rel="stylesheet" type="text/css" href="{{cdn('js/plugins/upload_resource/webuploader.css')}}"/>
    <link rel="stylesheet" type="text/css" href="{{cdn('js/plugins/upload_resource/style.css')}}"/>
    @if($old_allow_num>1&&$info->allow_num==0)
    <script>
        var index = parent.layer.getFrameIndex(window.name);
        parent.layer.msg('最多只能上传{{$old_allow_num}}张图片', {icon: 5, scrollbar: false, time: 1500, shade: [0.3, '#393D49']});
        parent.layer.close(index);
    </script>
    @endif
@endsection

@section('bodyattr')class="gray-bg"@endsection

@section('body')
    <div id="wrapper">
        <div id="container">
            <!--头部，相册选择和格式选择-->

            <div id="uploader">
                <div class="queueList">
                    <div id="dndArea" class="placeholder">
                        <div id="filePicker"></div>
                        <p>本次最多上传{{$info->allow_num}}个文件，且每个文件大小在{{$info->allow_size/1024/1024}}M以内，文件格式为{{$extensions}}</p>
                    </div>
                </div>
                <div class="statusBar" style="display:none;">
                    <div class="progress">
                        <span class="text">0%</span>
                        <span class="percentage"></span>
                    </div>
                    <div class="info"></div>
                    <div class="btns">
                        <div id="filePicker2"></div>
                        <div class="uploadBtn">开始上传</div>
                    </div>
                </div>
            </div>
        </div>
    </div>
@endsection

@section('script')
    <script>
        var html_info='';
        /*
        * 整体上传成功
        * file_id    文件id
        * num        文件允许数量
        * type       类型1图片2资源
        * */
        function upload_end(file_id,num,type){
            var index = parent.layer.getFrameIndex(window.name);
            if(type==1){
                if(num==1){
                    //单图片直接覆盖
                    parent.$('#'+file_id).html(html_info);
                }
                else{
                    parent.$('#'+file_id).append(html_info);
                }
            }
            else{
                //重置资源文件value值
                parent.$('#'+file_id).val(html_info);
            }
            layer.msg('上传成功', {icon: 6, scrollbar: false, time: 1500, shade: [0.3, '#393D49']});
            setTimeout(function(){
                parent.layer.close(index);
            },1500);
        }

        /*
        * 单文件上传成功
        * file_path  文件存储路径
        * num        文件允许数量
        * type       类型1图片2资源
        * */
        function upload_success(file_path,num,type,file_id){
            if(type==1){
                if(num==1){
                    html_info='<div class="img-div"><img src="'+file_path+'" /><span onclick=del_img($(this))>×</span><input type="hidden" name="'+file_id+'" value="'+file_path+'" /></div>';
                }
                else{
                    html_info=html_info+'<div class="img-div"><img src="'+file_path+'" /><span onclick=del_img($(this))>×</span><input type="hidden" name="'+file_id+'[]" value="'+file_path+'" /></div>';
                }
            }
            else{
                html_info=file_path;
            }
        }

    </script>
    <script src="{{cdn('js/plugins/upload_resource/webuploader.js')}}"></script>
    <script>
        var _token='{{csrf_token()}}';
        var extensions='{{$extensions}}';
        var mimeTypes='{{$mimeTypes}}';
        var type_key='{{$info->type_key}}';
        var item_id=0;
        var fileNumLimit={{$info->allow_num}};
        var fileSingleSizeLimit={{$info->allow_size}};
        (function ($) {
            // 当domReady的时候开始初始化
            $(function () {
                var $wrap = $('#uploader'),

                // 图片容器
                        $queue = $('<ul class="filelist"></ul>')
                                .appendTo($wrap.find('.queueList')),

                // 状态栏，包括进度和控制按钮
                        $statusBar = $wrap.find('.statusBar'),

                // 文件总体选择信息。
                        $info = $statusBar.find('.info'),

                // 上传按钮
                        $upload = $wrap.find('.uploadBtn'),

                // 没选择文件之前的内容。
                        $placeHolder = $wrap.find('.placeholder'),

                        $progress = $statusBar.find('.progress').hide(),

                // 添加的文件数量
                        fileCount = 0,

                // 添加的文件总大小
                        fileSize = 0,

                // 优化retina, 在retina下这个值是2
                        ratio = window.devicePixelRatio || 1,

                // 缩略图大小
                        thumbnailWidth = 110 * ratio,
                        thumbnailHeight = 110 * ratio,

                // 可能有pedding, ready, uploading, confirm, done.
                        state = 'pedding',

                // 所有文件的进度信息，key为file id
                        percentages = {},
                // 判断浏览器是否支持图片的base64
                        isSupportBase64 = (function () {
                            var data = new Image();
                            var support = true;
                            data.onload = data.onerror = function () {
                                if (this.width != 1 || this.height != 1) {
                                    support = false;
                                }
                            }
                            data.src = "";
                            return support;
                        })(),

                // 检测是否已经安装flash，检测flash的版本
                        flashVersion = (function () {
                            var version;

                            try {
                                version = navigator.plugins['Shockwave Flash'];
                                version = version.description;
                            } catch (ex) {
                                try {
                                    version = new ActiveXObject('ShockwaveFlash.ShockwaveFlash')
                                            .GetVariable('$version');
                                } catch (ex2) {
                                    version = '0.0';
                                }
                            }
                            version = version.match(/\d+/g);
                            return parseFloat(version[0] + '.' + version[1], 10);
                        })(),

                        supportTransition = (function () {
                            var s = document.createElement('p').style,
                                    r = 'transition' in s ||
                                            'WebkitTransition' in s ||
                                            'MozTransition' in s ||
                                            'msTransition' in s ||
                                            'OTransition' in s;
                            s = null;
                            return r;
                        })(),

                // WebUploader实例
                        uploader;

                if (!WebUploader.Uploader.support('flash') && WebUploader.browser.ie) {
                    layer.alert('您未安装flash或flash版本过低');
                    return;
                } else if (!WebUploader.Uploader.support()) {
                    layer.alert('Web Uploader 不支持您的浏览器！');
                    return;
                }

                // 实例化
                uploader = WebUploader.create({
                    pick: {
                        id: '#filePicker',
                        label: '点击选择文件'
                    },
                    formData: {
                        'ajax': 1,
                        '_token': _token,
                        'type_key': type_key,
                        'item_id': item_id
                    },
                    dnd: '#dndArea',
                    paste: '#uploader',
                    swf: '/js/plugins/upload_resource/Uploader.swf',
                    chunked: false,
                    chunkSize: 512 * 1024,
                    server: '{{route('admin.upload')}}',
                    // runtimeOrder: 'flash',
                    accept: {
                        title: 'Resource',
                        extensions: extensions,
                        mimeTypes: mimeTypes
                    },

                    // 禁掉全局的拖拽功能。这样不会出现图片拖进页面的时候，把图片打开。
                    disableGlobalDnd: true,
                    fileNumLimit: fileNumLimit,
                    fileSingleSizeLimit: fileSingleSizeLimit
                });

                uploader.on('dialogOpen', function () {
                   // console.log('here');
                });

                uploader.on('uploadSuccess', function (file, response){
                   // console.log(response);
                    //console.log(file);
                    upload_success(response.data.file_path,{{$old_allow_num}},{{$type}},'{{$file_id}}');
                });

                // 添加“添加文件”的按钮，
                uploader.addButton({
                    id: '#filePicker2',
                    label: '继续添加'
                });

                uploader.on('ready', function () {
                    window.uploader = uploader;
                });

                // 当有文件添加进来时执行，负责view的创建
                function addFile(file) {
                    $('.state-ready').show();
                    $('.state-finish').show();
                   //console.log(file);
                    var $li = $('<li id="' + file.id + '">' +
                                    '<p class="title">' + file.name + '</p>' +
                                    '<p class="imgWrap"></p>' +
                                    '<p class="progress"><span></span></p>' +
                                    '</li>'),

                            $btns = $('<div class="file-panel">' +
                                    '<span class="cancel">删除</span>' /*+
                             '<span class="rotateRight">向右旋转</span>' +
                             '<span class="rotateLeft">向左旋转</span></div>'*/).appendTo($li),
                            $prgress = $li.find('p.progress span'),
                            $wrap = $li.find('p.imgWrap'),
                            $info = $('<p class="error"></p>'),

                            showError = function (code) {
                                switch (code) {
                                    case 'exceed_size':
                                        text = '文件大小超出';
                                        break;

                                    case 'interrupt':
                                        text = '上传暂停';
                                        break;

                                    default:
                                        text = '上传失败，请重试';
                                        break;
                                }

                                $info.text(text).appendTo($li);
                            };

                    if (file.getStatus() === 'invalid') {
                        showError(file.statusText);
                    } else {
                        // @todo lazyload
                        $wrap.text('预览中');
                        uploader.makeThumb(file, function (error, src) {
                            var img;

                            if (error) {
                                $wrap.text('不能预览');
                                return;
                            }

                            if (isSupportBase64) {
                                img = $('<img src="' + src + '">');
                                $wrap.empty().append(img);
                            } else {
                                /**
                                 * 此页面用来协助 IE6/7 预览图片，因为 IE 6/7 不支持 base64
                                 */
                                $.ajax('/js/plugins/upload_resource/preview.php', {
                                    method: 'POST',
                                    data: src,
                                    dataType: 'json'
                                }).done(function (response) {
                                    if (response.result) {
                                        img = $('<img src="' + response.result + '">');
                                        $wrap.empty().append(img);
                                    } else {
                                        $wrap.text("预览出错");
                                    }
                                });
                            }
                        }, thumbnailWidth, thumbnailHeight);

                        percentages[file.id] = [file.size, 0];
                        file.rotation = 0;

                        //文件达到限制
                        if($('.filelist li').length=={{$info->allow_num-1}}){
                            $("#filePicker2").hide();
                        }
                    }

                    file.on('statuschange', function (cur, prev) {
                        if (prev === 'progress') {
                            $prgress.hide().width(0);
                        } else if (prev === 'queued') {
                            $li.off('mouseenter mouseleave');
                            $btns.remove();
                        }

                        // 成功
                        if (cur === 'error' || cur === 'invalid') {
                            //console.log(file.statusText);
                            showError(file.statusText);
                            percentages[file.id][1] = 1;
                        } else if (cur === 'interrupt') {
                            showError('interrupt');
                        } else if (cur === 'queued') {
                            $info.remove();
                            $prgress.css('display', 'block');
                            percentages[file.id][1] = 0;
                        } else if (cur === 'progress') {
                            $info.remove();
                            $prgress.css('display', 'block');
                        } else if (cur === 'complete') {
                            $prgress.hide().width(0);
                            $li.append('<span class="success"></span>');
                        }

                        $li.removeClass('state-' + prev).addClass('state-' + cur);
                    });

                    $li.on('mouseenter', function () {
                        $btns.stop().animate({height: 30});
                    });

                    $li.on('mouseleave', function () {
                        $btns.stop().animate({height: 0});
                    });

                    $btns.on('click', 'span', function () {
                        var index = $(this).index(),
                                deg;

                        switch (index) {
                            case 0:
                                uploader.removeFile(file);
                                return;

                            case 1:
                                file.rotation += 90;
                                break;

                            case 2:
                                file.rotation -= 90;
                                break;
                        }

                        if (supportTransition) {
                            deg = 'rotate(' + file.rotation + 'deg)';
                            $wrap.css({
                                '-webkit-transform': deg,
                                '-mos-transform': deg,
                                '-o-transform': deg,
                                'transform': deg
                            });
                        } else {
                            $wrap.css('filter', 'progid:DXImageTransform.Microsoft.BasicImage(rotation=' + (~~((file.rotation / 90) % 4 + 4) % 4) + ')');
                        }


                    });

                    $li.appendTo($queue);
                }

                // 负责view的销毁
                function removeFile(file) {
                    var $li = $('#' + file.id);

                    delete percentages[file.id];
                    updateTotalProgress();
                    $li.off().find('.file-panel').off().end().remove();

                    //添加继续上传按钮
                    $("#filePicker2").show();
                }

                function updateTotalProgress() {
                    var loaded = 0,
                            total = 0,
                            spans = $progress.children(),
                            percent;

                    $.each(percentages, function (k, v) {
                        total += v[0];
                        loaded += v[0] * v[1];
                    });

                    percent = total ? loaded / total : 0;


                    spans.eq(0).text(Math.round(percent * 100) + '%');
                    spans.eq(1).css('width', Math.round(percent * 100) + '%');
                    updateStatus();
                }

                function updateStatus() {
                    var text = '', stats;

                    if (state === 'ready') {
                        text = '选中' + fileCount + '张图片，共' +
                                WebUploader.formatSize(fileSize) + '。';
                    } else if (state === 'confirm') {
                        stats = uploader.getStats();
                        if (stats.uploadFailNum) {
                            text = '已成功上传' + stats.successNum + '张照片至XX相册，' +
                                    stats.uploadFailNum + '张照片上传失败，<a class="retry" href="#">重新上传</a>失败图片或<a class="ignore" href="#">忽略</a>'
                        }

                    } else {
                        stats = uploader.getStats();
                        text = '共' + fileCount + '张（' +
                                WebUploader.formatSize(fileSize) +
                                '），已上传' + stats.successNum + '张';

                        if (stats.uploadFailNum) {
                            text += '，失败' + stats.uploadFailNum + '张';
                        }
                    }

                    $info.html(text);
                }

                function setState(val) {
                    var file, stats;

                    if (val === state) {
                        return;
                    }

                    $upload.removeClass('state-' + state);
                    $upload.addClass('state-' + val);
                    state = val;

                    switch (state) {
                        case 'pedding':
                            $placeHolder.removeClass('element-invisible');
                            $queue.hide();
                            $statusBar.addClass('element-invisible');
                            uploader.refresh();
                            break;

                        case 'ready':
                            $placeHolder.addClass('element-invisible');
                            $('#filePicker2').removeClass('element-invisible');
                            $queue.show();
                            $statusBar.removeClass('element-invisible');
                            uploader.refresh();
                            break;

                        case 'uploading':
                            $('#filePicker2').addClass('element-invisible');
                            $progress.show();
                            $upload.text('暂停上传');
                            break;

                        case 'paused':
                            $progress.show();
                            $upload.text('继续上传');
                            break;

                        case 'confirm':
                            $progress.hide();
                            $('#filePicker2').removeClass('element-invisible');
                            $upload.text('开始上传');

                            stats = uploader.getStats();
                            if (stats.successNum && !stats.uploadFailNum) {
                                setState('finish');
                                return;
                            }
                            break;
                        case 'finish':
                            stats = uploader.getStats();
                            if (stats.successNum) {
                                $('.state-finish').hide();
                                upload_end('{{$file_id}}',{{$old_allow_num}},{{$type}});
                                /*layer.alert('上传成功');*/
                            } else {
                                // 没有成功的图片，重设
                                state = 'done';
                                location.reload();
                            }
                            break;
                    }

                    updateStatus();
                }

                uploader.onUploadProgress = function (file, percentage) {
                    var $li = $('#' + file.id),
                            $percent = $li.find('.progress span');

                    $percent.css('width', percentage * 100 + '%');
                    percentages[file.id][1] = percentage;
                    updateTotalProgress();
                };

                uploader.onFileQueued = function (file) {
                    fileCount++;
                    fileSize += file.size;

                    if (fileCount === 1) {
                        $placeHolder.addClass('element-invisible');
                        $statusBar.show();
                    }

                    addFile(file);
                    setState('ready');
                    updateTotalProgress();
                };

                uploader.onFileDequeued = function (file) {
                    fileCount--;
                    fileSize -= file.size;

                    if (!fileCount) {
                        setState('pedding');
                    }

                    removeFile(file);
                    updateTotalProgress();

                };

                uploader.on('all', function (type) {
                    var stats;
                    switch (type) {
                        case 'uploadFinished':
                            setState('confirm');
                            break;

                        case 'startUpload':
                            setState('uploading');
                            break;

                        case 'stopUpload':
                            setState('paused');
                            break;

                    }
                });

                var errorMsg = [];
                errorMsg['Q_TYPE_DENIED'] = '文件类型错误，请重新选择';
                errorMsg['F_EXCEED_SIZE'] = '只能上传{{$info->allow_size/1024/1024}}M以内的文件';
                errorMsg['Q_EXCEED_NUM_LIMIT'] = '最多只能上传{{$info->allow_num}}个文件';
                errorMsg['F_DUPLICATE']='已添加相同的文件';
                uploader.onError = function (code) {
                    layer.alert(errorMsg[code]);
                };

                $upload.on('click', function () {
                    if ($(this).hasClass('disabled')) {
                        return false;
                    }

                    if (state === 'ready') {
                        uploader.upload();
                    } else if (state === 'paused') {
                        uploader.upload();
                    } else if (state === 'uploading') {
                        uploader.stop();
                    }
                });

                $info.on('click', '.retry', function () {
                    uploader.retry();
                });

                $info.on('click', '.ignore', function () {
                    layer.alert('todo');
                });

                $upload.addClass('state-' + state);
                updateTotalProgress();
            });

        })(jQuery);

    </script>
@endsection